Question details

How to Configure MODBUS Input Register in CI867 in Access variable editor?

I would like to configure Modbus Input registers in Access variables (30000). When I used the format at %IW10#100, it is showing Syntax error. The access variable is not accepting anything other than %MW and %M. When i give %MW it is only writing to 40000(FC03).How to configure for Input registers (FC4)?

The data type used for the variable is 'int'. The version of CBM used is 5.1.1.

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In the Access variable pane only %MW can be used. AC800M doesn't differ between Input or Holding Registers. When a MB Master is writing or reading with FC4 or FC3 the AC800M will answer. The Offset 40000 or 30000 is not used by AC800M.